Chapter 9 VOCAB Flashcards
addiction
a physical process associated with drug use whereby a person craves a drug; failure to take the drug can result in withdrawal symptoms
controlled substance
a drug or other chemical compound whose manufacture, distribution, posses-sion, and use are regulated by the legal system
• Controlled Substances Act
law that established penalties for possession, use, or distribution of illegal drugs and established five schedules for classifying drugs
• dependency
powerful craving for a drug; unlike addiction, dependency does not result in physical withdrawal symptoms upon discontinuation of the drug.
depressant
a substance that decreases or inhibits the nervous system, reducing alertness
hallucinogen
a drug that changes a person’s perceptions and thinking during intoxication
illegal drug
a drug that causes addiction, habitu-ation, or a marked change in consciousness, has limited or no medical use, and is listed in Schedule I of the U.S. Controlled Substances Act
narcotic
an addictive, sleep-inducing drug, often derived from opium, that acts as a central nervous system depressant and suppresses pain
poison
a natural or manufactured substance that can cause severe illness or death if ingested, inhaled, or absorbed through the skin
stimulant
a substance affecting the nervous system by increasing alertness, attention, and energy, as well as elevating blood pressure, heart rate, and respiration
tolerance
a condition occurring with consistent use of one drug whereby a person needs more and more of the drug to produce the same effect
toxicity
the degree to which a substance is poisonous or can cause illness
toxicology
the study of drugs, poisons, toxins, and other substances that harm a person when used for medical, recreational, or criminal purposes
toxin
a substance naturally produced by a living thing that can cause illness or death in humans
